Hi RicoZ, I would like to keep the proposal for man_made=tunnel as simple as possible. It looks like using tags like "location=*" for bridges and tunnels needs some more discussion, so please keep it separate. I have however added a link to your proposal in the "Features/Pages affected" section. If you think that anything else needs to be added now, please propose it on the discussion page. I suppose that I'll wait a few more days and then send out an RFC. --Biff (talk) 22:13, 7 June 2016 (UTC)

I will modify my proposal to make it easier to link to particular "features" of it and also handle the tunnel case. There are two points I would make differently than in the current man_made=tunnel proposal:

add the information how to map objects that are inside the tunnel as currently described in [1] - make a section for it in your proposal and link to the other proposal.

"special cases" - the multi-level bridge mapping with man_made=bridge & layer only works with the relation bridge/tunnel. So you can leave it out from your proposal and link to the two alternative proposals covering it. I will add the details how to do that to relation bridge/tunnel pretty soon.

I think I will ask for opinions for my proposal on the mailing list in the next week so you will have it easier to do your proposal. RicoZ (talk) 10:23, 9 June 2016 (UTC)

Ok, I'll try to further simplify my proposal by leaving out things that are described in other places and instead creating better links - also to your proposal. In the last days I've cleaned up some strange cases in the OSM database where people already used <man_made=tunnel> in undocumented ways. And I'll probably be a bit busy in the next days. So my RFC will likely be delayed by a few days. --Biff (talk) 20:33, 9 June 2016 (UTC)

Good catch. Haven't any local knowledge to tell whether this tunnel is two separated tubes or one tunnel which should be mapped as man_made=tunnel?

Btw I got somewhat distracted by creating Proposed features/natural=cave. It shares some similarities with man_made=tunnel so it may be interesting to get another perspective. RicoZ (talk) 14:03, 16 June 2016 (UTC)

The tunnel has already been tagged with <man_made=tunnel>. I'll take a look at your cave proposal. --Biff (talk) 17:01, 16 June 2016 (UTC)